2003 Mazda B3000 Engine Internals

Keep Your 2003 Mazda B3000 in Top Shape with Quality Engine Internals

Whether you’re repairing or upgrading your Engine Internal, using high-quality parts is key to keeping your 2003 Mazda B3000 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Standard Individual Rod Bearings, Oversized Main Bearings, and Standard Piston Rings. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Internals from Trusted Brands

Looking for a reliable Engine Internal? We’ve got you covered with options from brands you know and trust like FELPRO, DriveWorks, and National. For example, FELPRO Engine Internals start at just $25.99 with an average 4.6 star rating. DriveWorks and National offer similar pricing and quality, backed by strong customer feedback. With over 270 reviews and a solid 5 star average, you can shop with confidence knowing other Mazda B3000 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Mazda B3000 Engine Internal at Advance Auto Parts is around $37.10, with a range that starts at $7.79 and goes up to $131.99. With 13 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like REAR MAIN BEARING SEAL SET, Engine Crankshaft Seal Kit, and Multi-Purpose Seal start at just $19.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Internal, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 2003 Mazda B3000 in peak condition, inside and out.

Essential 2003 Mazda B3000 Engine Internals

Sealed Power – Engine Piston Set (Part No.H875CP 1.00MM)

Engine Piston Set

from

$36.99
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Helps improve cylinder sealing for less blow-by
  • Retains standard ring gaps in top groove
  • DUROSHIELD« skirt-coated piston
  • Moly-graphite coating extends engine life
  • Reduces friction for higher fuel economy
  • Prevents damage from inadequate lubrication on start-up
See More

Sealed Power – Engine Piston (Part No.WH497P)

Engine Piston

from

$31.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Hypereutectic
  • Made of high strength alloy & silicon
  • Higher strength than cast
  • Designed to retain standard ring gaps in top groove
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7011MA)

Engine Crankshaft Main Bearing Set

from

$68.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Piston Set (Part No.H497CP .50MM)

Engine Piston Set

from

$27.99
Engine Piston Set

Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-1220RA)

Engine Connecting Rod Bearing Set

from

$41.99
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-1220RA .25MM)

Engine Connecting Rod Bearing Set

from

$44.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Felpro – REAR MAIN BEARING SEAL SET (Part No.BS 40646)

REAR MAIN BEARING SEAL SET

from

$25.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Driveworks – Crankshaft Seal (Part No.S-3772)

Crankshaft Seal

from

$12.99
Product Features:
  • Brand may vary by location
See More

Driveworks – Oil Seal (Part No.S-2692)

Oil Seal

from

$10.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Felpro – Engine Crankshaft Seal Kit (Part No.BS 40158)

Engine Crankshaft Seal Kit

from

$26.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
See More

National – Multi-Purpose Seal (Part No.3772)

Multi-Purpose Seal

from

$19.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; single-lip
  • Temperature range: -80 Deg. F to 350 Deg. F / -62 Deg. C to 176 Deg. C
  • Good dry heat resistance
  • Excellent low temperature capability
  • Delivers quality and reliable performance for every type of repair
See More

National – Engine Crankshaft Seal (Part No.5287)

Engine Crankshaft Seal

from

$32.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: springless; multi-lip
  • Temperature range: -100 Deg. F to 450 Deg. F / -73 Deg. C to 232 Deg.
  • Excellent dry running capabilities
  • Low coefficient of friction
  • Delivers quality and reliable performance for every type of repair
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.1220RA)

Engine Connecting Rod Bearing

from

$7.79
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Piston Ring Set (Part No.E-446X)

Engine Piston Ring Set

from

$95.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Ring Set (Part No.E-446K)

Engine Piston Ring Set

from

$110.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Ring Set (Part No.E-944K)

Engine Piston Ring Set

from

$131.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Most Popular Standard Individual Rod Bearing for 2003 Mazda B3000s

Enhance your 2003 Mazda B3000 with this popular Standard Individual Rod Bearing we have in stock, for $7.79.

Sealed Power – Engine Connecting Rod Bearing (Part No.1220RA)

Engine Connecting Rod Bearing

from

$7.79
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Best-Selling 2003 Mazda B3000 Oversized Main Bearing

Upgrade your B3000 with our best-selling Oversized Main Bearing.

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7011MA)

Engine Crankshaft Main Bearing Set

from

$68.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Top-Quality Standard Piston Rings for 2003 Mazda B3000s

Choose a high-quality OEM or aftermarket Standard Piston Ring for Mazda B3000s and enjoy top-notch performance from $131.99.

Sealed Power – Engine Piston Ring Set (Part No.E-944K)

Engine Piston Ring Set

from

$131.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Top Picks for 2003 Mazda B3000 Standard Rod Bearing Sets

Invest in one of our 2 durable Standard Rod Bearing Sets for your 2003 Mazda, knowing you’re getting trusted brands and expert craftsmanship.

Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-1220RA)

Engine Connecting Rod Bearing Set

from

$41.99
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-1220RA .25MM)

Engine Connecting Rod Bearing Set

from

$44.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Top-Rated Crankshaft Seals for 2003 Mazda B3000s

Make a smart move for your 2003 Mazda B3000 with products all priced from $10.99 to $32.99.

Driveworks – Oil Seal (Part No.S-2692)

Oil Seal

from

$10.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Felpro – REAR MAIN BEARING SEAL SET (Part No.BS 40646)

REAR MAIN BEARING SEAL SET

from

$25.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Felpro – Engine Crankshaft Seal Kit (Part No.BS 40158)

Engine Crankshaft Seal Kit

from

$26.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
See More

National – Multi-Purpose Seal (Part No.3772)

Multi-Purpose Seal

from

$19.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; single-lip
  • Temperature range: -80 Deg. F to 350 Deg. F / -62 Deg. C to 176 Deg. C
  • Good dry heat resistance
  • Excellent low temperature capability
  • Delivers quality and reliable performance for every type of repair
See More

National – Engine Crankshaft Seal (Part No.5287)

Engine Crankshaft Seal

from

$32.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: springless; multi-lip
  • Temperature range: -100 Deg. F to 450 Deg. F / -73 Deg. C to 232 Deg.
  • Excellent dry running capabilities
  • Low coefficient of friction
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Crankshaft Seal (Part No.S-3772)

Crankshaft Seal

from

$12.99
Product Features:
  • Brand may vary by location
See More

Top-Rated Engine Internal Brands For Your 2003 Mazda B3000

When it comes to finding the perfect Engine Internal for your 2003 Mazda B3000, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Engine Internal brands including FELPRO, DriveWorks, and National, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $10.99. Purchasing a Engine Internal from us here at Advance Auto Parts is a smart move for both you and your 2003 Mazda B3000, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 2003 Mazda B3000 Engine Internals

If you’re looking for a top-quality Engine Internal for your 2003 Mazda B3000, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Internals. We have 2 FELPRO Engine Internals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $25.99 and an average cost of $26.49, you’ll find the perfect Engine Internal for your needs and budget. FELPRO Engine Internals for the 2003 Mazda B3000 come highly rated, with over 4 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Internal from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Engine Crankshaft Seal Kit
from $26.99
(2)
Engine Crankshaft Seal Kit
“it’s a good product, install it evenly, clean surfaces well.”
REAR MAIN BEARING SEAL SET
from $25.99
(2)
REAR MAIN BEARING SEAL SET
“This one is a little confusing, as they list two seals for my engine,and both says exact fit, with different part numbers!?”

Top-Quality DriveWorks 2003 Mazda B3000 Engine Internals

For those in search of a high-quality Engine Internal for their 2003 Mazda B3000, Advance Auto Parts offers a great selection of DriveWorks Engine Internals. With 1 DriveWorks Engine Internals in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Internals start at just $10.99, giving you a range of options to suit your budget. Backed by over 62 customer ratings and an average rating of 4.3 stars, DriveWorks Engine Internals provide both reliability and excellent performance. Choosing a DriveWorks Engine Internal from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Oil Seal
from $10.99
(62)
Oil Seal
“Perfect fit”

FAQs for 2003 Mazda B3000 Engine Internals

What are the best-selling Engine Internals for 2003 Mazda B3000s?

Out of 13 Engine Internals that fit 2003 Mazda B3000s, the following parts are the top sellers:

What’s the price range for 2003 Mazda B3000 Engine Internals?

The prices of Engine Internals for the 2003 Mazda B3000 range from $7.79 up to $131.99 for the most premium parts.

What is the average price of an Engine Internal for a 2003 Mazda B3000?

The average price for Engine Internals for the 2003 Mazda B3000 is $37.10. Keep in mind the variety of part types within our Engine Internal category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Internals for other Mazda B3000 model years?

Yes, we carry Engine Internals for 11 model years of Mazda B3000s between 1994 and 2007. The following model years are the most popular for Engine Internal purchases: 2007, 2006, 2005, 2004, 2002, 2001, 2000, 1999, and 1998.

What are the cheapest Engine Internals for my 2003 Mazda B3000?

The cheapest 2003 Mazda B3000 Engine Internals we carry are:

Does Advance Auto Parts sell Engine Internals for any other 2003 Mazda models?

Yes. We stock Engine Internals for 6 other popular 2003 Mazda models. Some of the most popular are 2003 MPV Engine Internals, 2003 B4000 Engine Internals, 2003 6 Engine Internals, 2003 B2300 Engine Internals, and 2003 Protege Engine Internals.

What are the top-rated Engine Internals that fit the 2003 Mazda B3000?

Based on 270 reviews by customers, our 2003 Mazda B3000 Engine Internals have an average customer rating of 5 stars. These are the highest-rated categories of Engine Internals for the 2003 Mazda B3000 and their top-rated products:

What types of Engine Internals do you sell for my 2003 Mazda B3000?

As of 11/2/25, these are some of the most in-demand types of Engine Internals for a 2003 Mazda B3000:

Can I get help with 2003 Mazda B3000 Engine Internal orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Engine Internals and more.

What is your return policy for Mazda B3000 Engine Internals?

Advance Auto Parts keeps returns simple. For new Mazda B3000 Engine Internals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.